Question

4(1,5c-7)-3(2c+5) упростите

Answer 1

Раскроем скобки и приведём подобные слагаемые:

4(1,5с - 7) - 3(2с + 5) = 4 * 1,5с - 4 * 7 - 3 * 2с - 3 * 5 = 6с - 28 - 6с - 15 = (6с - 6с) - (28 + 15) = 0 - 43 = - 43.

Ответ: (-43).

Answer 2

To simplify the expression, follow the order of operations (PEMDAS/BODMAS):

1. Parentheses/Brackets
2. Exponents/Orders
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's simplify the expression step by step:

1. Distribute the terms inside the parentheses: 4(1.5c - 7) - 3(2c + 5)

   = 4 * 1.5c - 4 * 7 - 3 * 2c - 3 * 5

   = 6c - 28 - 6c - 15

2. Combine like terms: The terms "6c" and "-6c" cancel each other out, so they add up to zero.

   = (-28) - 15

3. Perform the subtraction: = -43

The simplified expression is: -43